List of top Chemistry Questions asked in VITEEE

Two glass bulbs $A$ and $B$ are connected by a very small tube having a stop-cock. Bulb $A$ has a volume of $100\, cm^3$ and contained the gas while bulb $B$ was empty. On opening stop-clock, the pressure fell down to $40\%$. The volume of the bulb $B$ must be

$CH_3CH_2Br$ undergoes Wurtz reaction. We may expect some of the following product $A : CH_3CH_2CH_2CH_3$ $B : CH_2 = CH_2$ $C : CH_3 ? CH_3$ Select correct product.

The effective atomic number of cobalt in the complex $[Co(NH_3)_6]^{3+}$ is

In which of the following octahedral complexes of Co (At. no. 27), will the magnitude of $\Delta_{0}$ be the highest?

Sometimes explosion occurs while distilling ethers. It is due to the presence of

An alkene having molecular formula $C_8H_{12}$ on ozonolysis yields glyoxal and 2, 2-dimethyl butane-1, 4-dial. The structure of alkene is

For the reaction, $C _{3} H _{8}( g )+5 O _{2}( g ) \longrightarrow 3 CO _{2}( g )+4 H _{2} O ( l )$ at constant temperature, $\Delta H-\Delta E$ is

In producing chlorine through electrolysis $100\, W$ power at $125\, V$ is being consumed. How much chlorine per minute is leberated? ($ECE$ of chlorine is $0.367 ? 10^{-6}\, kg/C$)

$"925$ fine silver" means an alloy of

In a set of reactions acetic acid yielded a product D. $CH_{3} COOH {->[{SOCl_{2}}]} A {->[{\text{Benzene}}][{\text{anhy} AlCl_{3}}]} B {->[{HCN}]} C {->[{H_{2}O}]}$ The structure of D would be

Glycerine is used as a preservative for fruits and eatables because

Which one of the following will be most basic?

In the reversible reaction, $2 NO _{2} \ce{->[{k_{1}}][{K_{2}}]} N _{2} O _{4}$ the rate of disappearance of $N O_{2}$ is equal to

The correct formula of the complex tetraammineaquachlorocobalt (III) chloride is

\([\text{Co}(NH_3)_4Cl_2]NO_2\) and \([\text{Co}(NH_3)_4ClNO_2]Cl\) exhibit which type of isomerism?

Coordination number of Ni in \([Ni(C_2O_4)_3]^{4-}\) is

For a reaction type \(A + B \rightarrow\) products, it is observed that doubling concentration of \(A\) causes the reaction rate to be four times as great, but doubling amount of \(B\) does not affect the rate. The unit of rate constant is

A chemical reaction was carried out at \(320\,K\) and \(300\,K\). The rate constants were found to be \(k_1\) and \(k_2\) respectively. Then

For the reaction,
\[ 2A(g) + B_2(g) \rightleftharpoons 2AB_2(g) \] the equilibrium constant, \(K_p\) at \(300\,K\) is \(16.0\). The value of \(K_p\) for \(AB_2(g) \rightleftharpoons A(g) + \dfrac{1}{2}B_2(g)\) is

The standard Gibbs free energy change, \(\Delta G^\circ\) is related to equilibrium constant, \(K_p\), as

The yield of the product in the reaction
\[ A_2(g) + 2B(g) \rightleftharpoons C(g) + Q\,kJ \] would be higher at

In which of the following case, does the reaction go farthest to completion?

The radius of \(Na^+\) is \(95\,pm\) and that of \(Cl^-\) ion is \(181\,pm\). Hence, the coordination number of \(Na^+\) will be

Most crystals show cleavage because their atoms, ions or molecules are

Frenkel defect is generally observed in